Error-free spectral encoding and decoding operation of InP O-CDMA encoder

Abstract

We report error-free spectral encoding and decoding operation of an InP monolithic, ultra-compact optical-CDMA encoder/decoder photonic chip pair. The experimental results demonstrate the strong potential for realizing high performance O-CDMA networks with InP micro-systems.

Spectral phase encoded time spread optical code division multiple access technology for next generation communication networks [Invited]

“…Since both the circulator and the diffraction grating of the pulse shapers are polarizing, the decoder selects the desired polarization of the polarization-multiplexed signal. Although the bulk optics of the current encoders-decoder prevent them from being used in a true telecom environment, the equivalent functions can be performed using compact arrayed waveguide gratings and phase shifters [10,23,24] depicted in Fig. 1(c).…”

Monolithically Integratable Colliding Pulse Modelocked Laser Source for O-CDMA Photonic Chip Development

“…1(a) shows the schematic of a monolithic integrated O-CDMA transceiver built by integrating discrete O-CDMA components. Previous demonstrations of arrayed waveguide (AWG) encoders and decoders, colliding pulse mode-locked lasers (CPM) and nonlinear thresholders under identical fabrication procedure proved the InP platform used in this work viable for monolithic integration [4][5][6]. The focus of this paper is the development of the novel, O-CDMA photonic chip compatible, 3 μm deeply-etched mirrors (DEM) which form the CPM laser cavity and connects it to the O-CDMA photonic chip components.…”

Multi-wavelength light source for OCDMA using a directly sinusoidally modulated laser diode

“…It allows different users to overlap in time, wavelength, and space. In particular, frequency-encoding OCDMA (FE-OCDMA) [1][2][3] makes it easy to achieve asynchronous OCDMA. The key to realizing FE-OCDMA is a multi-wavelength light source that emits precisely-wavelength-controlled and well-flattened lights.…”